【作者】 刘珏； 刘平香；

【Author】 LIU Jue;LIU Ping-xiang;Science and Technology on Underwater Acoustic Antagonizing Laboratory;Shanghai Marine Electronic Equipment Research Institute;

【机构】 水声对抗技术重点实验室； 上海船舶电子设备研究所；

【摘要】 在检测某种信号处理算法性能或目标源仿真模拟时,常通过CW或LFM等信号加上一定的伪随机序列实现,而实际目标噪声信号复杂且具有一定的随机特性。本文通过FIR自适应滤波器设计及线谱结构统计规律建模,实现了舰船噪声连续谱的逼真拟合及线谱稳定特征和随机特性的模拟,用于仿真系统特别是长时间仿真过程的系统性能检测。更多还原

【Abstract】 As target signal simulation,or performance verify of signal processing algorithm,normal method is CW or LFM signal plus with pseudo-random sequence.But the fact is target consist of complex components and signal with specified random.This paper simulated continuous-spectrum and line-spectrum of ship-radiated noise which based on FIR self-adapting filter and line-spectrum feature,the continuous-spectrum fit eidetic and line-spectrum have both stable and random characteristic which can be used in performance verify of simulation system especially in long time simulation.更多还原